Construction method for compensating roadbed settlement by pre-burying expansion bags

A construction method and expansion bag technology, applied in the field of road subgrade treatment, can solve the problems of large climate impact, inability to deal with subgrade settlement in time, and inability to construct, and achieve a short construction period, save subgrade and pavement materials, and fast construction speed. Effect

Inactive Publication Date: 2018-03-06
雨发建设集团有限公司
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AI Technical Summary

Problems solved by technology

Traditional methods of dealing with subgrade settlement, such as excavating and replacing new subgrade and pavement materials, directly filling pavement materials above the road surfac...

Method used

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  • Construction method for compensating roadbed settlement by pre-burying expansion bags
  • Construction method for compensating roadbed settlement by pre-burying expansion bags

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Embodiment

[0044] This construction method is applicable to road subgrade construction prone to settlement deformation.

[0045] 1. Construction preparation

[0046] 1. Understand the stratum distribution of the site in detail according to the "Geological Survey Report", visit the construction site, be familiar with the engineering geological survey data and the surrounding underground pipe trenches and adjacent buildings;

[0047] 2. Do a good job of setting up the site enclosure and the drainage ditches on both sides of the road in the construction site to prevent water accumulation in the site and ensure the smooth flow of construction machinery roads. The construction sewage must be treated in the sedimentation tank before being discharged into the sewer. Before construction, water and electricity, monitoring facilities and temporary living facilities should be installed according to the needs, and the construction area and living area should be set separately.

[0048] 3. Carry ou...

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Abstract

The invention relates to a treatment method for a road roadbed, in particular to a construction method for compensating roadbed settlement by pre-burying expansion bags. The construction method comprises the following steps: firstly, in a roadbed construction process, filling the roadbed at a road section which causes settlement deformation easily to a certain height; secondly, building retainingwalls on two sides of the roadbed; thirdly, paving a plurality of layers of bagged quick lime in the full width range of the roadbed on the inner sides of the retaining walls; fourthly, communicatingeach bag of the bagged quick lime to a rubber pipe on the outer side of the roadbed; fifthly, numbering and marking the rubber pipes, and sealing pipe openings after construction is completed; sixthly, injecting water into a quick lime layer when the roadbed settlement is treated, monitoring the elevation of the surface of the road in a water injecting process, and regulating water injecting speedand water injecting amount; finally, treating cracks which appear because of the settlement of a road surface. The invention aims to provide the construction method for compensating the roadbed settlement by pre-burying the expansion bags, which has the advantage that the roadbed settlement can be compensated timely in all weathers without affecting the traffic.

Description

technical field [0001] The invention relates to a treatment method for road subgrades, in particular to a construction method for compensating subsidence of subgrades with pre-embedded expansion bags. Background technique [0002] After the road is opened to traffic, subgrade settlement is very common due to various reasons such as poor foundation conditions, inferior subgrade filler, improper construction technology, climate and environmental factors, which seriously affect the performance of the road and threaten traffic safety. Traditional methods of dealing with subgrade settlement, such as excavating and replacing new subgrade and pavement materials, directly filling pavement materials above the road surface, etc., have the following shortcomings: construction is greatly affected by the weather, construction cannot be carried out in rainy days, and subgrade settlement cannot be treated in time. Contents of the invention [0003] The object of the present invention is ...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/04
CPCE01C3/00E01C3/04
Inventor 林其盛林昊
Owner 雨发建设集团有限公司
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